From 2fa70e389417da2cc54e1bb77aca749f2407ceac Mon Sep 17 00:00:00 2001 From: Vasily Averin Date: Thu, 23 Jan 2020 10:11:28 +0300 Subject: neigh_stat_seq_next() should increase position index [ Upstream commit 1e3f9f073c47bee7c23e77316b07bc12338c5bba ] if seq_file .next fuction does not change position index, read after some lseek can generate unexpected output. https://bugzilla.kernel.org/show_bug.cgi?id=206283 Signed-off-by: Vasily Averin Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- net/core/neighbour.c | 1 + 1 file changed, 1 insertion(+) (limited to 'net/core/neighbour.c') diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 9849f1f4cf4f..40d33431bc58 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -2798,6 +2798,7 @@ static void *neigh_stat_seq_next(struct seq_file *seq, void *v, loff_t *pos) *pos = cpu+1; return per_cpu_ptr(tbl->stats, cpu); } + (*pos)++; return NULL; } -- cgit v1.2.3